Tsunamis can be extremely destructive and can knock down whole buildings.But not all earthquakes or volcanic eruptions cause tsunamis. Credit: If an earthquake happens in the ocean, a large piece of Earth's crust can be thrust upward or slip from side to side. This retreating of sea water is an important A tsunami is usually composed of a series of waves, called a wave train, so its destructive force may be compounded as successive waves reach shore. As the wave (dark blue/white lines) moved, it caused changes in the atmosphere that could be detected by navigation satellites. The 2004 Indian Ocean earthquake and tsunami, also called the Sumatra-Andaman earthquake, was a great … The series of waves generated by a tsunami is called a wave train. article last updated February 22, 2019 It ripples out from the earthquake in waves.This is an animation of an October 2012 tsunami as it crossed Hawaii. 2020 National Geographic Partners, LLC. 5 Quick Facts about Tsunami.


Tsunami is a Japanese word meaning harbour (tsu) wave (nami). The lava flowing out of the volcano displaces the water around it. So where does the water go? People experiencing a tsunami should remember that the danger may not have passed with the first wave and should await official word that it is safe to return to vulnerable locations.Some tsunamis do not appear on shore as massive breaking waves but instead resemble a quickly surging tide that inundates coastal areas.The best defense against any tsunami is early warning that allows people to seek higher ground. Credit: NASA/GSFC/LaRC/JPL, MISR TeamThese images help scientists understand how tsunamis work. Whether a tsunami forms can depend on a lot of things. Kids Encyclopedia Facts. So can the distance and direction of the earthquake.If there's a chance a tsunami is on its way, you don't want to be near the coast. That way, people can have enough warning to get away and stay safe. All rights reserved 2004 Indian Ocean Tsunami and Earthquake third largest earthquake ever recorded. These massive series of waves travel fast and get larger in appearance in shallow water. The first wave of a tsunami may not be the biggest. If the water recedes—or moves away from the coast—after an earthquake, a big tsunami may be on its way.This video shows how a tsunami can form from an earthquake under the ocean. The shape of the ocean floor can determine if a tsunami happens. Effects of the Tsunami Deaths. Credit: Sapienza University/NASA-JPL/CaltechThis can also happen if a volcano erupts in the ocean. Credit: NASA/JPL/Shigeru Suzuki and Eric M. De Jong, Solar System Visualization ProjectMISR can see sunlight reflecting off ripples and waves. The Pacific Tsunami Warning System, a coalition of 26 nations headquartered in Hawaii, maintains a web of seismic equipment and water level gauges to identify tsunamis at sea.

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